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This topic comprises 3 pages: 1 2 3
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Author
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Topic: 'Bobby Jones' shedding problem?
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Thomas Procyk
Phenomenal Film Handler
Posts: 1842
From: Royal Palm Beach, FL, USA
Registered: Feb 2002
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posted 05-05-2004 12:10 PM
You call that shedding?!? BAH!
You should see our projector(s) after they run some of the used prints we get. Not dust, more like flakes. All different colored flakes. Blue, purple, red... After a week, we cleaned up enough debris to equal three fistfulls!
FilmGuard helps a LOT in these situations, but by the time we get these prints, they're so messed up that it only reduces the flaking, but doesn't eliminate it. Media pads come off with SHEETS of the stuff. Luckily, so far it's only been with shitty movies that we lose after a week. (maybe they're printing the shitty movies on shitty stock?)
And as for Dan Lyons's comment about the rust, that's actually not bad at all for a Florida booth. You should see our Cinemeccanicas that sat in an unairconditioned booth for 2 years when GCC closed. Seems like everything gets a "tan" one way or another in this state!
=TMP=
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Randy Stankey
Film God
Posts: 6539
From: Erie, Pennsylvania
Registered: Jun 99
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posted 05-05-2004 02:30 PM
That's not your average shedding print. Something's wrong with your projector, I say.
Check your gate, shoe, trap alignment, your sprockets, pad rollers and all of that stuff. Start at the payout platter and follow the film all the way through the system, back to the takeup platter.
Here's where it gets funky: That damage could have been caused by somebody else's fuck up. (Misthread, etc.) Now you have this "snow" all over the print. Every time you run the film the action of the projector will "fling" the dust everywhere. It will actually look like it's snowing in your booth! This problem will continue for as long as you have that print, even if you take the print to another projector. Running the print through a film cleaner and/or FilmGuard may help the problem but it will always be there to some degree.
After a while, if the damage wasn't severe AND if the projector is in good working order, the problem will quiet down. It may eventually seem to go away. If this happens to you then you can assume that the damage was a one time thing.
If the problem stays the same or gets worse, the damage wasn't a one time thing. If a different print played through the same projector starts showing the same symptoms then it's a problem in the projector.
Concentrate your search on the gate area. Common culprits are damaged or broken pressure bands. Also look at the shoe to see if it's installed properly and doesn't have any nicks in it. Closing pressure and/or alignment of the shoe with the trap are also good places to look.
Next, look at the intermittent and the intermittent pad shoe. Look for the same kinds of things: Broken, damaged, missing or misaligned parts.
One more thing you can do is to take a look at the film under bright light. With film that is damaged that badly you will probably be able to see the damage on the film. Where is the damage?
Because the "snow" in your projector isn't colored but is almost snow white I'm going to guess it's on the base side. (Just a guess.)
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John Pytlak
Film God
Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
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posted 05-05-2004 09:06 PM
Back when "Schindler's List" and "Ed Wood" were released, the Kodak B&W print stock used definitely needed to be lubricated after processing, per SMPTE Recommended Practice RP151 and Kodak's H-24.02 processing specifications. I recall that the early prints of "Schindler's List" were not lubricated by the lab, but later B&W silver image prints did receive "TomaKote" treatment.
Kodak has since added more lubricant to the film itself (can't add too much, or the big rolls of raw stock become too loose to handle without dishing), but post process lubrication will always provide additional protection against projector abrasion, and is still recommended for all prints by SMPTE RP151.
Bruk: Derek's photo certainly looks like polyester debris from the base side of the film. I've seen it before.
Kodak invested over $200 million to build a new base making machine for VISION Color Print Film to add a special proprietary anti-static scratch-resistant coating to reduce projector abrasion and "static cling":
http://www.kodak.com/country/US/en/motion/newsletters/inCamera/fall98/print.shtml
quote: Both new print films incorporate major advances in the science of emulsion design and manufacturing technologies. They are both coated on a rugged, new, more durable polyester base material manufactured by Kodak in a state-of-the-art factory...
...prints stay cleaner, resist scratches better and are more durable. This will enhance the movie-going experience...
...The new process-surviving antistat technology will greatly reduce the propensity for dirt attraction in theatrical projection."
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